Trình bày ý tưởng, mô tả thuật toán tìm kiếm tuyến tính, áp dụng mô tả thuật toán theo từng bước để tìm kiếm tuyến tính phần tử có giá trị x = 12 trong dãy số
cho trước A= 8, 4, 6, 12, 5, 35, 17, 20.

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square